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We( )the problem for quite some time,but we( )any conclusion yet.
A.have been discussing.haven't reached
B.have disscussed.haven't been reaching
C.discussed.haven't reached
D.had discussed.haven't reached
人气:349 ℃ 时间:2020-02-01 08:35:57
解答
简单做法:先看后一空:有yet,所以是have not done 即现在完成时+ 主动,(固定搭配:reach a conclusion)
第一空:由于后有提示还未结束,所以这个动作于过去开始,到了现在,将来还有可能继续,所以典型的have been doing即现在完成进行时结构
最后答案明确:A
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